I still got "SSL routines:ssl3_get_record:wrong version number"

Hi,

No matter how I tried I still got the error: SSL routines:ssl3_get_record:wrong version number.

I’ve read this discussion. Setting it to port 465 seems to work (at least it gave me {"message":"Successfully connected to SMTP server.","level":"info","label":"peertube.slat.org 443","timestamp":"2024-04-06T04:37:22.242Z"} when starting peertube), but I’d still like to find out why I kept getting this SSL version number error.

And there seems no way to test SMTP from peertube…

Any suggestion will be highly appreciated.